National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

John Glenn Columbus International Airport (KCMH)

Lat: 39.99°NLon: 82.88°WElev: 807ft.

Partly Cloudy

79°F

26°C

Humidity 45%
Wind Speed E 12 mph
Barometer 30.01 in (1015.6 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 6 Sep 3:51 pm EDT
Extended Forecast for

Johnstown OH

  • Tonight

    Tonight: Mostly clear, with a low around 57. Northeast wind around 9 mph.

    Low: 57 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 80. East wind around 9 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. Northeast wind around 7 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. South wind 5 to 7 mph.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66. South wind around 7 mph.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm, then showers after 2am. Low around 67. Chance of precipitation is 80%.

    Low: 67 °F

    Showers

  • Thursday

    Thursday: Showers before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 78. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Partly cloudy, with a low around 57. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 57. Northeast wind around 9 mph.
Labor Day
Sunny, with a high near 80. East wind around 9 mph.
Monday Night
Mostly clear, with a low around 59. Northeast wind around 7 mph.
Tuesday
Mostly sunny, with a high near 83. South wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 66. South wind around 7 mph.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Showers likely and possibly a thunderstorm, then showers after 2am. Low around 67. Chance of precipitation is 80%.
Thursday
Showers before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 78. Chance of precipitation is 80%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
A chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown OH
 40.16°N 82.69°W (Elev. 1112 ft)
Last Update:
4:00 pm EDT Sep 6, 2026
Forecast Valid:
4pm EDT Sep 6, 2026-6pm EDT Sep 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation